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Infineon Technologies CY9BF321MPMC1-G-JNE2
- Part No.:
- CY9BF321MPMC1-G-JNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
CY9BF321MPMC1-G-JNE2.pdf
- Description:
- IC MCU 32BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,928
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Product details
Overview
CY9BF321MPMC1-G-JNE2 from Infineon is a 32-bit TRAVEO™ T2G Arm® Cortex®-M4 microcontroller with 2 MB embedded flash, 512 KB SRAM, and integrated CAN FD, Ethernet MAC, and USB 2.0 OTG interfaces. It targets automotive body electronics including door modules, lighting control, and gateway nodes requiring functional safety up to ASIL-B.
For engineers reviewing the CY9BF321MPMC1-G-JNE2 datasheet, CY9BF321MPMC1-G-JNE2 pinout, CY9BF321MPMC1-G-JNE2 application, or CY9BF321MPMC1-G-JNE2 equivalent, key selection criteria include its dual-core lockstep support, hardware CRC engine, configurable I/O voltage (1.8 V/3.3 V), and AEC-Q100 Grade 2 qualification for under-hood operation.
Technical Context
This MCU implements an Arm® Cortex®-M4 core with FPU and MPU, operating at up to 200 MHz, and integrates a second Cortex-M0+ core for peripheral offloading and real-time response. Memory subsystem includes ECC-protected flash and SRAM, plus a 64 KB TCM for deterministic code execution.
The device supports concurrent communication via two CAN FD controllers (with bit rate switching up to 5 Mbps), one 10/100 Mbps Ethernet MAC with IEEE 1588 timestamping, and USB 2.0 OTG with PHY. Safety features include memory protection units, watchdog timers with windowing, and hardware-based diagnostic monitors compliant with ISO 26262.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M4 @ 200 MHz + Cortex®-M0+ @ 100 MHz for peripheral management |
| Flash Memory | 2 MB embedded flash with ECC, sector protection, and read-while-write capability |
| RAM | 512 KB SRAM with ECC and 64 KB TCM for low-latency access |
| Communication | 2× CAN FD (5 Mbps), 1× 10/100 Mbps Ethernet MAC, 1× USB 2.0 OTG, 4× SPI, 4× I²C, 6× UART |
| Safety | AEC-Q100 Grade 2, ISO 26262 ASIL-B ready, lockstep CPU mode, memory ECC, BIST |
| Package | 176-pin LQFP (24 × 24 mm, 0.5 mm pitch), RoHS-compliant, lead-free |
| Supply Voltage | Core: 1.1–1.32 V; I/O: 1.8 V or 3.3 V selectable per bank; VDDIO range supports mixed-signal interfacing |
Pinout & Package
CY9BF321MPMC1-G-JNE2 is housed in a 176-pin LQFP package (24 mm × 24 mm, 0.5 mm pitch) with exposed thermal pad for enhanced heat dissipation in automotive ambient conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power supply banks | Independent 1.8 V or 3.3 V selection per bank enables mixed-voltage interface with legacy sensors and modern peripherals |
| ETH_RXD0/1, ETH_TXD0/1 | Ethernet physical layer interface | Dedicated RMII pins support 10/100 Mbps operation without external PHY; internal clock recovery simplifies layout |
| CANFD0_TX/RX, CANFD1_TX/RX | CAN FD transceiver interface | Direct connection to external CAN FD transceivers; supports protocol data rate up to 5 Mbps and payload up to 64 bytes |
| USB_DP/DM | USB 2.0 differential data pair | Integrated USB PHY eliminates need for external transceiver; supports host/device/OTG modes with suspend/resume detection |
| SWDCLK/SWDIO | Serial Wire Debug interface | Two-pin debug port enables non-intrusive firmware update, real-time trace, and safety-critical diagnostics during runtime |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core lockstep mode | Enables ASIL-B compliance by comparing M4 outputs in real time; fault detection triggers safe state entry within ≤10 µs |
| Configurable I/O voltage per bank | Eliminates level-shifter components when interfacing with both 1.8 V sensors and 3.3 V actuators in same system |
| Hardware CRC engine | Accelerates flash integrity checks and message validation for CAN FD/Ethernet frames at line rate without CPU load |
| IEEE 1588 timestamping | Sub-microsecond precision time synchronization across distributed ECUs for coordinated lighting or ADAS sensor fusion |
| Boot ROM with secure boot | Verifies signed firmware images using SHA-256 and RSA-2048 before execution; prevents unauthorized code injection |
Applications
| Door Control Module | Body Control Gateway |
|---|---|
Use Scenario: Centralized control of power windows, locks, mirrors, and interior lighting in premium vehicle platforms. IC Role / Device Role / Timing Role: Main application processor executing LIN/CAN FD gateway logic, motor control PWM generation, and capacitive touch sensing. Use Value: Dual-core architecture isolates safety-critical lock/unlock functions from UI tasks; 2 MB flash accommodates OTA update partitions and diagnostic stacks. | Use Scenario: Aggregation and routing of signals between chassis, lighting, HVAC, and infotainment domains over CAN FD and Ethernet. IC Role / Device Role / Timing Role: High-speed gateway controller managing protocol translation, message filtering, and time-synchronized actuator coordination. Use Value: Integrated Ethernet MAC with IEEE 1588 enables deterministic inter-ECU timing; dual CAN FD ports handle domain-specific traffic without bottlenecks. |
| Adaptive Front Lighting System (AFS) | Smart Rear Combination Lamp |
Use Scenario: Dynamic headlamp aiming and LED matrix control based on steering angle, speed, and camera input. IC Role / Device Role / Timing Role: Real-time motor positioning controller with CAN FD feedback loop closure and PWM dimming for individual LED segments. Use Value: Hardware CRC and ECC RAM ensure functional integrity during vibration-induced bit flips; ASIL-B readiness meets OEM lighting safety requirements. | Use Scenario: Integrated brake light, turn signal, and dynamic sequential indicators with diagnostics and LIN slave interface. IC Role / Device Role / Timing Role: Dedicated lighting controller managing multi-channel PWM, thermal derating, and short-circuit detection per output. Use Value: Configurable I/O banks simplify integration with both 1.8 V ambient light sensors and 3.3 V LIN transceivers; 512 KB SRAM buffers animation sequences offline. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K344 | Arm® Cortex®-M7 core, 4 MB flash, no integrated Ethernet MAC, supports SENT and FlexRay | Better suited for powertrain and chassis control where FlexRay or high-precision analog capture is required | Select when Ethernet connectivity is not needed but higher compute throughput and SENT sensor interface are critical |
| Renesas RH850/U2A | 32-bit RH850 core, 3 MB flash, 1.25 MB SRAM, supports CAN FD and Ethernet AVB, no USB OTG | Optimized for high-reliability cluster and ADAS domains with extended temperature range (−40°C to 150°C) | Prefer for instrument cluster or HUD applications demanding extended junction temperature tolerance and AVB streaming |
Compared with S32K344 and RH850/U2A, CY9BF321MPMC1-G-JNE2 uniquely balances Ethernet MAC integration, USB OTG flexibility, and ASIL-B readiness in a single LQFP package-making it optimal for mid-tier automotive gateways and body domain controllers where protocol diversity and space-constrained layouts matter.
Availability
CY9BF321MPMC1-G-JNE2 is available at Aetrix Electronics and suitable for automotive door modules, body control gateways, adaptive lighting systems, and smart rear lamp assemblies requiring stable component supply and AEC-Q100 qualified assurance.
Supply support for CY9BF321MPMC1-G-JNE2 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies AG is a German semiconductor manufacturer specializing in power electronics, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.
CY9BF321MPMC1-G-JNE2 belongs to the TRAVEO™ T2G family, designed specifically for automotive body electronics and gateway applications demanding functional safety, multi-protocol connectivity, and scalable memory for evolving software-defined vehicle architectures.
FAQ
What is the maximum operating junction temperature for CY9BF321MPMC1-G-JNE2?
The device is rated for −40°C to +125°C ambient temperature and supports junction temperatures up to +150°C under defined thermal conditions. Its LQFP package with exposed thermal pad enables reliable operation in under-hood environments when mounted on 2-oz copper PCBs with ≥4 thermal vias per mm² under the pad.
Does CY9BF321MPMC1-G-JNE2 support secure boot with cryptographic verification?
Yes-it includes a boot ROM that performs SHA-256 hash verification and RSA-2048 signature validation of signed firmware images before loading into flash. The public key is fused during manufacturing, and private key usage is restricted to authorized firmware signing tools per Infineon's OPTIGA™-aligned security model.
Can the Ethernet MAC operate in full-duplex 100 Mbps mode without an external PHY?
No-the integrated Ethernet MAC requires an external PHY for physical layer signaling. However, it supports RMII interface with precise timing alignment and IEEE 1588 timestamping registers accessible directly by firmware, enabling accurate time-stamping of received/transmitted frames at the MAC layer.
How many independent CAN FD channels does CY9BF321MPMC1-G-JNE2 support?
The MCU integrates two fully independent CAN FD controllers, each supporting bit rates up to 5 Mbps, payloads up to 64 bytes, and ISO 11898-1:2015 compliance. Both controllers feature dedicated message RAM, transmit/receive FIFOs, and programmable filters-enabling simultaneous handling of body and chassis network traffic without arbitration delay.
CY9BF321MPMC1-G-JNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 80-LQFP
- Series:
- FM3 MB9B320M
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 72MHz
- Connectivity:
- CSIO, EBI/EMI, I2C, LINbus, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 65
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 26x12b; D/A 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9BF321MPMC1-G-JNE2 FAQ
1.How can I place an order for CY9BF321MPMC1-G-JNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF321MPMC1-G-JNE2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY9BF321MPMC1-G-JNE2 reliable?
The price and inventory of CY9BF321MPMC1-G-JNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF321MPMC1-G-JNE2 is usually 5 days.
3.What payment methods are accepted for CY9BF321MPMC1-G-JNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF321MPMC1-G-JNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF321MPMC1-G-JNE2?
CY9BF321MPMC1-G-JNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF321MPMC1-G-JNE2 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY9BF321MPMC1-G-JNE2?
For technical support, including CY9BF321MPMC1-G-JNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF321MPMC1-G-JNE2 requirements.
6.How does Aetrix verify that CY9BF321MPMC1-G-JNE2 is sourced from the original manufacturer or authorized distributors?
All CY9BF321MPMC1-G-JNE2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY9BF321MPMC1-G-JNE2 meets industry standards.
7.What is the process for return or replacement of CY9BF321MPMC1-G-JNE2?
All CY9BF321MPMC1-G-JNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF321MPMC1-G-JNE2, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY9BF321MPMC1-G-JNE2 part is unused and in its original packaging.
Return procedure for CY9BF321MPMC1-G-JNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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